Origin of laser-induced near-subwavelength ripples: interference between surface plasmons and incident laser

CORC > 上海光学精密机械研究所 > 中国科学院上海光学精密机械研究所 > 强场激光物理国家重点实验室

	Origin of laser-induced near-subwavelength ripples: interference between surface plasmons and incident laser
	Huang M(黄敏) ; Zhao FL(赵福利) ; Cheng Y(程亚) ; Xu NS(许宁生) ; Xu ZZ(徐至展)
刊名	acs nano
	2009-11-12
卷号	3 期号:12 页码:4062–4070
关键词	laser-induced near-subwavelength ripples surface plasmons SP-laser interference grating-assisted SP-laser coupling high-excited surface nano-optics
合作状况	国内
英文摘要	we show that short-pulse laser-induced classical ripples on dielectrics, semiconductors, and conductors exhibit a prominent “non-classical” characteristic--in normal incidence the periods are definitely smaller than laser wavelengths, which indicates that the simplified scattering model should be revised. taking into account the surface plasmons (sps), we consider that the ripples result from the initial direct sp-laser interference and the subsequent grating-assisted sp-laser coupling. with the model, the period-decreasing phenomenon originates in the admixture of the field-distribution effect and the grating-coupling effect. further, we propose an approach for obtaining the dielectric constant, electron density, and electron collision time of the high-excited surface. with the derived parameters, the numerical simulations are in good agreement with the experimental results. on the other hand, our results confirm that the surface irradiated by short-pulse laser with damage-threshold fluence should behave metallic, no matter for metal, semiconductor, or dielectric, and the short-pulse laser-induced subwavelength structures should be ascribed to a phenomenon of nano-optics.
学科主题	光学
收录类别	SCI
语种	英语
WOS记录号	WOS:000272846000040
公开日期	2010-05-13
内容类型	期刊论文
源URL	[http://ir.siom.ac.cn/handle/181231/6799]
专题	上海光学精密机械研究所_强场激光物理国家重点实验室
推荐引用方式 GB/T 7714	Huang M,Zhao FL,Cheng Y,et al. Origin of laser-induced near-subwavelength ripples: interference between surface plasmons and incident laser[J]. acs nano,2009,3(12):4062–4070.
APA	Huang M,Zhao FL,Cheng Y,Xu NS,&Xu ZZ.(2009).Origin of laser-induced near-subwavelength ripples: interference between surface plasmons and incident laser.acs nano,3(12),4062–4070.
MLA	Huang M,et al."Origin of laser-induced near-subwavelength ripples: interference between surface plasmons and incident laser".acs nano 3.12(2009):4062–4070.